Question

2^-3 - 3^-2 помогите пожалуйста

Answer 1

2⁻³-3⁻²=1/2³-1/3²=(1/8)-(1/9)=(9*1-8*1)/72=(9-8)/72=1/72.

Answer 2

Ответ: -17; тк 2 в -3 = -8,3 в -2 = 9. -8 - 9= -17

Answer 3

2^-3 means 2 raised to the power of -3, which is equivalent to 1/2^3 or 1/8. 3^-2 means 3 raised to the power of -2, which is equivalent to 1/3^2 or 1/9.

So, the expression 2^-3 - 3^-2 can be calculated as 1/8 - 1/9.

To subtract these fractions, we need to find a common denominator, which in this case is 72. 1/8 is equivalent to 9/72 and 1/9 is equivalent to 8/72.

So, the expression becomes 9/72 - 8/72, which equals 1/72.

Therefore, 2^-3 - 3^-2 is equal to 1/72.